UN envoy to Mideast warns of war between Israel, Hamas

File - In this Jan. 15, 2017 file photo, a Palestinian family warm up outside their makeshift house during a power cut in Khan Younis in the southern Gaza Strip. Qatar's Foreign Ministry said Tuesday, May 7, 2019, that it will send $480 million to Palestinians in the West Bank and the Gaza Strip after a cease-fire deal ended the deadliest fighting between Israel and Palestinian factions since a 2014 war. A statement from Qatar said $300 million would support health and education programs of the Palestinian Authority, while $180 million would go toward "urgent humanitarian relief" in United Nations programs and toward electricity. (AP Photo/ Khalil Hamra, File)

The U.N. envoy to the Mideast says it's the "last chance" to prevent an all-out conflict between Israel and Gaza militants.

Nikolay Mladenov said on Monday that the "risk of war remains imminent," a week after a cease-fire between Israel and Gaza's Hamas rulers ended the worst fighting since a 2014 war.

The spate of violence killed 25 Palestinians, including 10 militants, and four Israeli civilians.

Mladenov, inaugurating a solar power plant for a Gaza hospital, said parties must "consolidate the understandings" of the cease-fire.

The deal, mediated by Egypt, Qatar and the U.N., promises to let in fuel and humanitarian aid and ease the movement of people from the blockaded territory.

A Qatari cash infusion, meant for thousands of needy families as part of the cease-fire understandings, arrived Monday.